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Finding the Third Proportional to 142,701.75 and 313,652.25

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Solution

The third proportional to 142,701.75 and 313,652.25 is: 689,394.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,701.75 : 313,652.25 = 313,652.25 : x
  2. Step 2: Convert to fraction form
    142,701.75/313,652.25 = 313,652.25/x
  3. Step 3: Cross multiply
    142,701.75x = 313,652.25 × 313,652.25
  4. Step 4: Simplify right side
    142,701.75x = 98,377,733,930.06
  5. Step 5: Solve for x
    x = 98,377,733,930.06/142,701.75
  6. Step 6: Final answer
    x = 689,394.03

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.